/**
* Make a copy of this sequential pattern
*
* @return the copy.
*/
public SequentialPattern cloneSequence() {
// create a new empty sequential pattenr
SequentialPattern sequence = new SequentialPattern();
// for each itemset
for (Itemset itemset : itemsets) {
// make a copy and add it
sequence.addItemset(itemset.cloneItemSet());
}
return sequence; // return the copy
}